Hey I just installed a 2000 gt motor in my 98 gt about 2 weeks ago.I used my 98 harness,fuel rail & ign (spark plug boxes).Car was running fine.Now when its under a load it sputters.I've changed fuel filter checked for cloged cats and my fuel pressure is 30 running and 34 key on(supposed to be 30-45 running and 37-43 key on.If anybody has any ideas let me know thanks!

Roddy.[/align]